Reference of 224311-51-7, An article , which mentions 224311-51-7, molecular formula is C20H27P. The compound – 2-(Di-tert-Butylphosphino)biphenyl played an important role in people’s production and life.
The mechanisms of aqueous methanol dehydrogenation reaction [CH3OH + H2O = 3H2 + CO2] catalyzed by conjugated PNP pincer amido M(CO)2(PNP) and amino HM(CO)2(PNHP) complexes [M = Mn, Re; and PNP = N(CH2CH2P(isopropyl)2)2] under base-free and strong base conditions as well as the K+ promotion effect were studied at the B3PW91 level of density functional theory. Benchmark calculations including dispersion and/or solvation corrections validated the computed gas phase data to be closest to the available kinetic and thermodynamic data from experiments. Under base-free conditions, the innocent mechanism is kinetically more favorable than the non-innocent mechanism. Under strong base conditions, KOH plays a dual role: deprotonating the substrate by OH- and stabilizing the rate-determining transition state by K+ by lowering the free energy barrier for H2 formation by N?K+?O interaction. Considering the special role of formic acid in H2 storage and CO2 hydrogenation, formic acid dehydrogenation should be accessible under base-free and strong base conditions.
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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate